x3noc

Does anyone know where the relay panel is on a RHD 2008 Q7...
Trying to replace the air suspension relay.

Struggling to find it...
Thanks

NorthernQ7

Since it is in the centre instrument panel (according to the doc that smith2010Q7 posted) on a LHD I would guess its the same for a RHD, maybe behind some switches or the ashtray etc?
Also see attached illustration (LHD) which shows the relay, number 3 in the pic.

x3noc

Having jammed my camera up inside the dash i've found a panel with some relays on it...
It 'feels' like it has clips on to swivel and make access easier but i can only find one.
From right to left or front to back depending on your point of view i've got
643,404,404,643,444 Do those number actually mean anything...?

x3noc

This is the camera up inside the dash.

NorthernQ7

If you can get a part number out of there (any part) I could look it up and see if its the same location as the relay or not.

NorthernQ7

BTW I found out, the numbers mean something. You are looking for number 643.


404 is for the horn or coolant pump, 444 is for the ESP.
According to the parts catalogue, 643 could be either compressor or headlight washers if you have those, or "rear window". There is a location code listed as well, the one for the compressor is listed in location "1" - dunno what that means.

Can you see multiple 643s in there?

x3noc

Ok Found it, it does swivel down on clips.
Replaced the relay and compressor still showing faults.
Oh well, am i really going to have to buy a new one... That seems excessive...

Edd W

Where did you get to with this in the end?

x3noc

I replaced the relay and the compressor in the end.
It's not made any difference.
i'm still getting these codes even with a brand new compressor and temp sensor!

01583 - Leak in System Detected - this seems only to be since i took it off the car. I'm pretty sure there isn't a leak.

Temperature Sensor for Level Control Pump/Compressor (G290)
008 - Implausible Signal
Freeze Frame:
Fault Status: 11101000
Fault Priority: 4
Fault Frequency: 1
Reset counter: 130
Mileage: 148744 km
Time Indication: 0
Date: 2015.03.12
Time: 15:13:29

Freeze Frame:
Error Code: 30

01577 - Turn-Off due to Over-Temp
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 170
Mileage: 148744 km
Time Indication: 0
Date: 2015.03.12
Time: 15:13:32

Freeze Frame:
Error Code: 68

Edd W

If you clear the codes, how long does the compressor run for before it cuts out and does it always report these two faults with the motor being obviously very hot to touch?